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About the Cover

07 November 2012; volume 279, issue 1746

Cover image

Cover image: Wildebeest, a species of African antelope, grazing in the Maasai Mara National Reserve, Kenya. Diets of antelopes can be inferred from the characteristic wear on their teeth, which is correlated with the isotopic signature of the plants they consume. (See pages 4441–4446; image courtesy of J. Louys.)